Canonical URL's on my NextGEN gallery site cause large numbers of unique pages to be marked as non-indexable. My site must therefore run with canonical URLs OFF.

Unfortunately WordPress SEO turns canonical URLs ON and unlike other SEO plugins does not (appear) to have an ON/OFF option. I see other entries in the forums where people have removed the WordPress SEO code segment managing canonical URLs so it appears this type of problem does impact other users.

I would therefore like to suggest that perhaps this functionality can be added at a later release.